[Python] Drawing a spiral in a spiral using Python turtle

What is wrong with my code for turtle angie? I want her to spiral inside brad's square circle.

My Code:

import turtle

def draw_square(some_turtle):

for i in range (1,5):
some_turtle.forward(200)
some_turtle.right(90)

def draw_art():
window = turtle.Screen()
window.bgcolor("black")
#Turtle Brad
brad = turtle.Turtle()
brad.shape("turtle")
brad.color("yellow")
brad.speed(6)
brad.pensize(2)
for i in range(1,37):
draw_square(brad)
brad.right(10)
#Turtle Angie
angie = turtle.Screen()
angie.shape("turtle")
angie.color("blue")
angie.speed(5)
angie.pensize(2)
size=1
while (True):
angie.forward(size)
angie.right(91)
size = size + 1

window.exitonclick()

draw_art()


Here are photos of I what I want it to look like. I want the outer part of the brad showing and then the circle inside to include the spiral. It should look like the spiral image attached. Thanks!



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